CAJ | 학술논문

通过随机区组试验,研究了不施氮(N0)、施氮51.75 kg/hm2(N1)和103.5 kg/hm2(N2)3个氮水平对“甘农3号”紫花苜蓿生长第1年及第2年产量和再生性能的影响。结果表明：“甘农3号”紫花苜蓿生长第2年产量显著高于第1年,在 N2处理下两年干草产量均最高,第1年为14717 kg/hm2,第2年为31092 kg/hm2；从株高和再生速度看,两年均以处理 N2下紫花苜蓿的再生性能最强,并且第2年的明显优于第1年。综上,试验区“甘农3号”紫花苜蓿在 N2处理下再生性能最好,株高和产量达最高,且两年均能进行4次刈割。
통과수궤구조시험,연구료불시담(N0)、시담51.75 kg/hm2(N1)화103.5 kg/hm2(N2)3개담수평대“감농3호”자화목숙생장제1년급제2년산량화재생성능적영향。결과표명：“감농3호”자화목숙생장제2년산량현저고우제1년,재 N2처리하량년간초산량균최고,제1년위14717 kg/hm2,제2년위31092 kg/hm2；종주고화재생속도간,량년균이처리 N2하자화목숙적재생성능최강,병차제2년적명현우우제1년。종상,시험구“감농3호”자화목숙재 N2처리하재생성능최호,주고화산량체최고,차량년균능진행4차예할。
By using randomized block plot design,the effects of 3 levels of nitrogen (N0,control;N1,5 1.75 kg N/ha;N2,103.50 kg N/ha)on the yield in first year and the growth and regeneration in second year of alfal-fa (Medicago sativa cv.Gannon No.3)were studied in Lanzhou in 2012 and 2013.The results showed that the yield in second year was significantly higher that that in first year.The yield under N2 treatment was the highest (14 717 kg/ha in 2012 and 31 092 kg in 2013).The plant height and regeneration performance was also the best under N2 treatment.